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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 01-23-2014, 09:17 PM   #1
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Join Date: Dec 2013
Location: Jonesborough,TN
Posts: 36
My Ride: 2001 330I
Engine idle at cold weather??

Hi guys, help or ideas needed. I have a 2001 330i auto. I have 2 codes which are bank 1,2 reading lean. But my problem is, at cold start or cold weather idleing is rough and spits and acts like its missing spark. I cut it off and restart it and runs great, any helpnwouod be greatly thanked.

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Old 02-28-2014, 11:26 AM   #2
Piston Muncher
Registered User
Join Date: Feb 2014
Location: Sunshine Coast, Australia
Posts: 14
My Ride: BMW E46 318i
Hi mate I have a very similar problem with my 318i once it's warm it's fine. I have replaced the coil an sparks plugs new factory items. I have also replaced the ecu with a stock item an still no luck. Please help!
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Old 05-10-2014, 06:17 PM   #3
Piston Muncher
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Join Date: Feb 2014
Location: Sunshine Coast, Australia
Posts: 14
My Ride: BMW E46 318i
Need help! Someone?

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